Occurrence of the JAK2 V617F mutation in the WHO provisional entity: myelodysplastic/myeloproliferative disease, unclassifiable-refractory anemia with ringed sideroblasts associated with marked thrombocytosis

Haematologica. 2006 May;91(5):719-20.

Abstract

The JAK2/V617F mutation has been noted in essential thrombocytemia. We investigated 19 cases with refractory anemia with ringed sideroblasts (RARS), including three RARS with thrombocytosis (RARS-T). Only the RARS-T patients showed this mutation. More cases need to be analyzed to determine the prevalence of the JAK2/V617F mutation in RARS-T.

Publication types

  • Letter

MeSH terms

  • Aged
  • Aged, 80 and over
  • Amino Acid Substitution
  • Anemia, Refractory / classification
  • Anemia, Refractory / enzymology
  • Anemia, Refractory / genetics*
  • Anemia, Sideroblastic / classification
  • Anemia, Sideroblastic / enzymology
  • Anemia, Sideroblastic / genetics*
  • Disease Progression
  • Female
  • Follow-Up Studies
  • Gene Frequency
  • Humans
  • Janus Kinase 2
  • Megakaryocytes / pathology
  • Mutation, Missense*
  • Myelodysplastic Syndromes / classification*
  • Myeloproliferative Disorders / classification*
  • Point Mutation*
  • Primary Myelofibrosis / genetics
  • Protein-Tyrosine Kinases / genetics*
  • Proto-Oncogene Proteins / genetics*
  • Thrombocytosis / classification
  • Thrombocytosis / enzymology
  • Thrombocytosis / genetics*
  • World Health Organization

Substances

  • Proto-Oncogene Proteins
  • Protein-Tyrosine Kinases
  • JAK2 protein, human
  • Janus Kinase 2